cmake/Modules/CMakeSystemSpecificInformation.cmake

# XXX Emscripten:
# This file is copied as-is from the CMake source tree. Due to how CMake
# platform toolchain files work, we must have a copy of this file located
# relative to Emscripten platform toolchain file, or file inclusion order
# in cmGlobalGenerator::EnableLanguage will not find Emscripten.cmake
# toolchain file, and as a result, it is not possible to set the default
# compilation output suffix to .js, and as a consequence the script
# check_function_exists() will not function properly (it will try to
# build to wrong file suffix)

# CMake - Cross Platform Makefile Generator
# Copyright 2000-2014 Kitware, Inc.
# Copyright 2000-2011 Insight Software Consortium
# All rights reserved.

# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:

# * Redistributions of source code must retain the above copyright
#   notice, this list of conditions and the following disclaimer.

# * Redistributions in binary form must reproduce the above copyright
#   notice, this list of conditions and the following disclaimer in the
#   documentation and/or other materials provided with the distribution.

# * Neither the names of Kitware, Inc., the Insight Software Consortium,
#   nor the names of their contributors may be used to endorse or promote
#   products derived from this software without specific prior written
#   permission.

# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# ------------------------------------------------------------------------------

# The above copyright and license notice applies to distributions of
# CMake in source and binary form.  Some source files contain additional
# notices of original copyright by their contributors; see each source
# for details.  Third-party software packages supplied with CMake under
# compatible licenses provide their own copyright notices documented in
# corresponding subdirectories.

# ------------------------------------------------------------------------------

# CMake was initially developed by Kitware with the following sponsorship:

#  * National Library of Medicine at the National Institutes of Health
#    as part of the Insight Segmentation and Registration Toolkit (ITK).

#  * US National Labs (Los Alamos, Livermore, Sandia) ASC Parallel
#    Visualization Initiative.

#  * National Alliance for Medical Image Computing (NAMIC) is funded by the
#    National Institutes of Health through the NIH Roadmap for Medical Research,
#    Grant U54 EB005149.

#  * Kitware, Inc.

# This file is included by cmGlobalGenerator::EnableLanguage.
# It is included after the compiler has been determined, so
# we know things like the compiler name and if the compiler is gnu.

# before cmake 2.6 these variables were set in cmMakefile.cxx. This is still
# done to keep scripts and custom language and compiler modules working.
# But they are reset here and set again in the platform files for the target
# platform, so they can be used for testing the target platform instead
# of testing the host platform.
set(APPLE  )
set(UNIX   )
set(CYGWIN )
set(WIN32  )


# include Generic system information
include(CMakeGenericSystem)

# 2. now include SystemName.cmake file to set the system specific information
set(CMAKE_SYSTEM_INFO_FILE Platform/${CMAKE_SYSTEM_NAME})

include(${CMAKE_SYSTEM_INFO_FILE} OPTIONAL RESULT_VARIABLE _INCLUDED_SYSTEM_INFO_FILE)

if(NOT _INCLUDED_SYSTEM_INFO_FILE)
  message("System is unknown to cmake, create:\n${CMAKE_SYSTEM_INFO_FILE}"
          " to use this system, please send your config file to "
          "cmake@www.cmake.org so it can be added to cmake")
  if(EXISTS ${CMAKE_BINARY_DIR}/CMakeCache.txt)
    configure_file(${CMAKE_BINARY_DIR}/CMakeCache.txt
                   ${CMAKE_BINARY_DIR}/CopyOfCMakeCache.txt COPYONLY)
    message("Your CMakeCache.txt file was copied to CopyOfCMakeCache.txt. "
            "Please send that file to cmake@www.cmake.org.")
   endif()
endif()


# optionally include a file which can do extra-generator specific things, e.g.
# CMakeFindEclipseCDT4.cmake asks gcc for the system include dirs for the Eclipse CDT4 generator
if(CMAKE_EXTRA_GENERATOR)
  string(REPLACE " " "" _CMAKE_EXTRA_GENERATOR_NO_SPACES ${CMAKE_EXTRA_GENERATOR} )
  include("CMakeFind${_CMAKE_EXTRA_GENERATOR_NO_SPACES}" OPTIONAL)
endif()


# for most systems a module is the same as a shared library
# so unless the variable CMAKE_MODULE_EXISTS is set just
# copy the values from the LIBRARY variables
# this has to be done after the system information has been loaded
if(NOT CMAKE_MODULE_EXISTS)
  set(CMAKE_SHARED_MODULE_PREFIX "${CMAKE_SHARED_LIBRARY_PREFIX}")
  set(CMAKE_SHARED_MODULE_SUFFIX "${CMAKE_SHARED_LIBRARY_SUFFIX}")
endif()


set(CMAKE_SYSTEM_SPECIFIC_INFORMATION_LOADED 1)